The connection of the « Data Analysis » add-in is described here in detail. Click at the bottom «Go» to «Add-Ins Excel» and select « Data Analysis ». On the «DATA» tab click the «Data Analysis» button. The task is to identify the main development trend.Įnter the sales data in the Excel spreadsheet: Example: a sales network analyzes data on sales of goods by stores located in cities with a population of fewer than 50,000 people. As a rule, regular changes in the members of the series are predictable. Their variability is divided into regular and random components. If you capture the values of some process at certain intervals, you get the elements of the time series.
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